US2510673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforming gasoline
Assignee: Pure Oil Co
•
Filing: 1947-12-04
•
Granted: 1950-06-06
•
Expires: 1967-12-04
Abstract
No abstract record available.
Inventors
- 👤 Annable Weldon Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:44
CPC Classifications
C; C10; C10G; C10G59/00; C10G59/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
THE METHOD OF PREPARING GASOLINE OF HIGH OCTANE VALUE CONSISTING OF TH STEPS: (1) SEPARATING A NAPHTHA FRACTION HAVING A BOILING RANGE CORRESPONDING APPROXIMATELY TO A GASOLINE INTO TWO FRACTIONS, ONE HAVING A BOILING RANGE UP TO ABOUT 300*F. AND A SECOND NAPHTHA FRACTION BOILING BETWEEN ABOUT 300* AND 400*F., (2) SUBJECTING THE SAID SECOND FRACTION TO A THERMAL REFORMING OPERATION, (3) SEPARATING THE REFORMED PRODUCTS INTO A FIRST FRACTION BOILING UP TO ABOUT 300*F., AND A SECOND FRACTION BOILING BETWEEN ABOUT 300* AND 400*F., (4) SEPARATING THE LAST MENTIONED FRACTION INTO A FRACTION RICH IN AROMATICS AND OLEFINS AND ANOTHER FRACTION RICH IN PARAFFINIC AND NAPHTHENIC HYDROCARBONS, (5) SUBJECTING THE SAID PARAFFINIC AND NAPHTHENIC FRACTION TO THERMAL REFORMING, (6) RECOVERING THEREFROM A FRACTION BOILING UP TO APPROXIMATELY 300*F. AND A FRACTION BOILING BETWEEN ABOUT 300* AND 400*F. RICH IN AROMATICS AND OLEFINS, AND (7) BLENDING TOGETHER AS GASOLINE THE FRACTIONS RICH IN AROMATICS AND OLEFINS BOILING BETWEEN ABOUT 300* AND 400*F.
Claim 2
Independent Claim
162 words
THE METHOD OF PREPARING GASOLINE OF HIGH OCTANE VALUE CONSISTING OF TH STEPS: (1) SEPARATING A NAPHTHA FRACTION HAVING A BOILING RANGE CORRESPONDING APPROXIMATELY TO A GASOLINE INTO TWO FRACTIONS, ONE HAVING A BOILING RANGE UP TO ABOUT 300*F. AND A SECOND NAPHTHA FRACTION BOILING BETWEEN ABOUT 300* AND 400*F., (2) SUBJECTING THE SAID SECOND FRACTION TO A THERMAL REFORMING OPERATION, (3) SEPARATING THE REFORMED PRODUCTS INTO A FIRST FRACTION BOILING UP TO ABOUT 300*F., AND A SECOND FRACTION BOILING BETWEEN ABOUT 300* AND 400*F., (4) SEPARATING THE LAST MENTIONED FRACTION INTO A FRACTION RICH IN AROMATICS AND OLEFINS AND ANOTHER FRACTION RICH IN PARAFFINIC AND NAPHTHENIC HYDROCARBONS, (5) SUBJECTING THE SAID PARAFFINIC AND NAPHTHENIC FRACTION TO THERMAL REFORMING, (6) RECOVERING THEREFROM A FRACTION BOILING UP TO APPROXIMATELY 300*F. AND A FRACTION BOILING BETWEEN ABOUT 300* AND 400*F. RICH IN AROMATICS AND OLEFINS, AND (7) BLENDING TOGETHER AS GASOLINE THE FRACTIONS RICH IN AROMATICS AND OLEFINS BOILING BETWEEN ABOUT 300* AND 400*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |